CN112709835A - Pressure-control type conical ball valve - Google Patents
Pressure-control type conical ball valve Download PDFInfo
- Publication number
- CN112709835A CN112709835A CN202011315998.6A CN202011315998A CN112709835A CN 112709835 A CN112709835 A CN 112709835A CN 202011315998 A CN202011315998 A CN 202011315998A CN 112709835 A CN112709835 A CN 112709835A
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- valve
- conical
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- guide
- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0207—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0257—Packings
- F16K5/0285—Packings spindle sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/16—Special arrangements for separating the sealing faces or for pressing them together for plugs with conical surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention aims to provide a pressure control type conical ball valve which comprises a shell, an upper valve cover, a guide gland, a conical valve core, a valve rod, a handle and a throttling pressure control element, wherein the conical valve core is positioned in a valve cavity in the shell, the upper valve cover seals the upper space of the valve cavity of the conical valve core, the upper end of the conical valve core is fixedly connected with the valve rod, the valve rod upwards penetrates through the upper valve cover, the valve rod is sleeved with an oil seal ring, an inlet channel and an outlet channel which are communicated with the valve cavity are also formed on two sides in the shell, a penetrating fluid channel is formed on the conical valve core, and the throttling pressure control element is fixedly arranged in the fluid channel of the conical valve core; it combines steady voltage function and end function to traditional cone valve in, makes the cone valve after the combination possess the function of amortization at steady voltage in-process simultaneously to better satisfy in-service use.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a pressure control type conical ball valve.
Background
The valve is used as a core control component of the current fluid path system, the application of the valve is more and more extensive, and due to various functional requirements of the fluid path system, the valve is often combined together for use, such as the combination of a pressure reducing valve and a stop valve, the combination of a flow stabilizing valve and a pressure stabilizing valve, the combination of a pressure reducing valve and a stop valve and the like, the arrangement of a plurality of valves relatively increases the complexity of the pipeline system, and the total input cost of pipeline construction is increased.
In contrast, some multifunctional combined valves, such as a pressure reducing ball valve, a noise reducing ball valve, etc., have appeared, but the combined valve body with pressure stabilizing and stopping functions is still lacking in the market at present, mainly because the conventional pressure stabilizing valve is often complex in structure and is not suitable for being combined with other valve bodies.
Disclosure of Invention
Based on the defects of the prior art, the invention aims to provide a pressure-control type conical ball valve, which combines the pressure stabilizing function and the stopping function into the traditional conical valve, and enables the combined conical valve to have the silencing function in the pressure stabilizing process so as to better meet the actual use.
The technical scheme adopted by the invention is as follows: a pressure control type conical ball valve is characterized by comprising a shell, an upper valve cover, a guide gland, a conical valve element, a valve rod, a handle and a throttling pressure control element, wherein the conical valve element is positioned in a valve cavity in the shell, the upper valve cover seals the upper space of the valve cavity of the conical valve element, the upper end of the conical valve element is fixedly connected with the valve rod, the valve rod penetrates out of the upper valve cover upwards, an oil seal ring is sleeved on the valve rod and is positioned in an annular space between the valve rod and the upper valve cover to realize the relative sealing between the valve rod and the upper valve cover, the upper part of the upper valve cover is fixedly connected with the guide gland, the guide gland relatively fixes the oil seal ring to move along the axial direction of the valve rod, the guide gland is used for guiding the rotary motion of the valve rod, and the valve rod penetrates out of the upper end of the guide gland and is fixedly connected with the handle;
an inlet channel and an outlet channel which are communicated with the valve cavity are formed on two sides in the shell, a penetrating fluid channel is arranged on the cone valve core, the throttling pressure control element is fixedly arranged in the fluid channel of the cone valve core, the throttling pressure control element is provided with a large opening end positioned in the upstream direction and a small opening end positioned in the downstream direction, the main body of the throttling pressure control element is an elastic metal cone, a throttling opening with the inner diameter smaller than that of the small opening end is formed by spirally inwards shrinking at a position, close to the small opening end, between the large opening end and the small opening end, of the cone, the inner walls of the front side and the rear side of the throttling opening form folds with rotational flow guide, and the edge of the small opening end is evenly shrunk inwards to form a corrugated pipe type edge line.
An arc plate valve seat is further arranged inside the valve cavity of the shell, and the arc plate valve seat realizes sealing between the inner shell and the conical valve core of the valve cavity; limiting bosses are formed on two sides inside the shell, the limiting bosses divide the inner wall surface of the valve cavity of the shell into two symmetrical parts, the arc plate valve seat is divided into a left part and a right part which are respectively installed in the two symmetrical parts, so that the arc plate valve seat cannot rotate in the circumferential direction after being installed inside the shell, and through holes corresponding to the inlet channel and the outlet channel are formed in the arc plate valve seat in a penetrating mode. The conical valve element is characterized in that a cylindrical accommodating hole is formed in the bottom of the shell, a directional rod is fixedly connected to the bottom of the conical valve element, the directional rod is located in the cylindrical accommodating hole after the conical valve element is installed in the shell, and an axial strip-shaped groove is further formed in the side wall of the directional rod.
The guide gland main body is of a cylindrical structure and is fixedly connected with the upper valve cover through a flange, and a spiral groove penetrating through the side wall of the guide gland is formed in the side wall of the cylindrical structure; the valve rod is provided with a through hole which penetrates in the radial direction, a guide rod is arranged in the through hole, and two ends of the guide rod are respectively positioned in the spiral grooves on two sides of the guide gland.
The oil seal ring is of a ring structure, a plurality of parallel grooves are circumferentially arranged on the inner wall surface of the oil seal ring, the oil seal rings are stacked for use, and a labyrinth seal structure is formed between the oil seal ring and the valve rod through the grooves on the inner wall surface.
The lower end of the valve rod is welded with the conical valve core or integrally manufactured; the valve rod be located the valve gap with the inside district's section of direction gland is the cylinder type, and the top that the direction gland was worn out to the valve rod is square pole, square pole and the square hole cooperation of handle, and square pole upper end screw-thread fit installs the screw, the screw prevents the handle breaks away from square pole.
The invention has the advantages that:
1. the conical valve core can generate micro-amplitude lifting in the opening and closing processes, the conical valve core can generate downward pressing force after being closed, the valve seat adopts an arc plate type structure, plate type sealing is formed between the valve seat and the conical valve core when the valve seat is closed, a large sealing contact surface is provided, the sealing effect is relatively good due to the increase of the pressing force, and the conical valve core cannot be difficult to open due to too large friction force when the conical valve core is opened due to the increase of the sealing contact surface;
2. the structure design of the throttling pressure control element ensures that when the fluid flow of the upstream end is large, the fluid pressure pushes the throttling orifice and the small opening end to expand, the flow area of the throttling orifice and the small opening end is adaptively increased, when the fluid flow of the upstream end is reduced, the calibers of the throttling orifice and the small opening end are retracted, the flow area is reduced, and the pressure fluctuation caused by the throttling effect is weakened through the expansion and contraction of the throttling pressure control element, so that the fluid pressure after throttling is ensured to be stable; meanwhile, due to the existence of the spiral wrinkles, the fluid flowing through the throttling control pressure element has a rotational flow guiding effect, and the noise generated during throttling is reduced through the rotational flow characteristic;
3. the conical valve core is slightly lifted in the opening process, so that the friction force between the arc plate valve seat and the conical valve core is further weakened, and the conical valve core is convenient to open;
4. the labyrinth seal mode of the oil seal ring is adopted to replace the traditional packing seal or rubber ring seal, and the seal is not required to be frequently replaced due to abrasion;
5. the setting of strip-shaped groove on the directional pole of awl case lower extreme more can in time strike off and store the impurity that gets into the casing inside, prevents that impurity from hindering the rotation action when the valve is opened and is closed.
Drawings
FIG. 1 is a schematic view of the overall construction of the cone valve of the present invention;
FIG. 2 is a schematic cross-sectional view of the cone valve of the present invention;
FIG. 3 is a schematic view of the housing structure of the cone valve of the present invention;
FIG. 4 is a schematic view of a spool valve stem configuration of the cone valve of the present invention;
FIG. 5 is a schematic view of an arc plate valve seat structure of the cone valve of the present invention;
FIG. 6 is a schematic view of the guide gland structure of the cone valve of the present invention;
FIG. 7 is a schematic view of the oil seal ring structure of the cone valve of the present invention;
FIG. 8 is a schematic view of the construction of the throttling and pressure controlling element of the cone valve of the present invention;
1. the valve comprises a shell, 2, a valve rod, 3, a conical valve core, 4, a handle, 5, a screw, 6, an upper valve cover, 7, an oil seal ring, 8, an arc plate valve seat, 9, a guide gland, 10, a guide rod, 11, a spiral groove, 12, a through hole, 13, a directional rod, 14, a strip-shaped groove, 15, a throttling and pressure-controlling element, 16 and a limiting boss.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the disclosure herein.
Referring to the drawings, the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present disclosure can be implemented, so that the present disclosure has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the disclosure of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. Meanwhile, the positional limitation terms used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship therebetween may be regarded as the scope of the present invention without substantial changes in the technical content.
FIG. 1 is a schematic view of the overall construction of the cone valve of the present invention; FIG. 2 is a schematic cross-sectional view of the cone valve of the present invention; as shown in the figure, the pressure control type conical ball valve comprises a shell 1, an upper valve cover 6, a guide gland 9, a conical valve core 3, a valve rod 2, a handle 4 and a throttling pressure control element 15, the cone valve core 3 is positioned in the valve cavity inside the shell 1, the upper valve cover 6 seals the upper space of the valve cavity of the cone valve core 3, the upper end of the conical valve core 3 is fixedly connected with the valve rod 2, the valve rod 2 upwards penetrates through the upper valve cover 6, the valve rod 2 is sleeved with the oil seal ring 7, the oil seal ring 7 is positioned in an annular space between the valve rod 2 and the upper valve cover 6 to realize the relative sealing between the valve rod 2 and the upper valve cover 6, a guide gland 9 is fixedly connected above the upper valve cover 6, the guide gland 9 relatively fixes the axial movement of the oil seal ring 7 along the valve rod, and the guide gland 9 is used for guiding the rotary motion of the valve rod 2, and the valve rod 2 penetrates out of the upper end of the guide gland 9 and is fixedly connected with the handle 4.
An inlet channel and an outlet channel which are communicated with the valve cavity are formed on two sides in the shell 1, a penetrating fluid channel is arranged on the cone valve core 3, and the cone valve core 3 can control the fluid channel to be communicated or disconnected with the inlet channel and the outlet channel when rotating. The lower extreme of valve rod 2 and the welding of awl case 3 or the integral type is made, valve rod 2 be located valve gap 6 with the inside district's section of direction gland 6 is the cylinder type, and the top that direction gland 6 was worn out to valve rod 2 is square pole, square pole and the quad slit cooperation of handle 4, and the mating of square pole upper end screw thread installs screw 5, screw 5 prevents handle 4 breaks away from square pole.
Fig. 8 is a schematic structural diagram of a throttling pressure control element of a cone valve according to the present invention, the throttling pressure control element 15 is fixedly installed in a fluid passage of the cone valve core 3, as shown in the figure, the throttling pressure control element 15 has a large opening end located in an upstream direction and a small opening end located in a downstream direction, and a main body thereof is an elastic metal cone, a position of the cone located between the large opening end and the small opening end and close to the small opening end is spirally inwardly contracted to form a throttling opening with an inner diameter smaller than that of the small opening end, and the contraction of the throttling opening causes inner walls on front and rear sides of the throttling opening to form folds with swirl direction for forming a swirl silencing effect on fluid passing through the throttling pressure control element 15; the edge of the small opening end is uniformly contracted inwards to form a corrugated pipe type edge line, so that the throttling opening and the small opening end both have elastic contraction and expansion capacity.
The arrangement of the throttling and pressure controlling element 15 ensures that when the fluid flow at the upstream end is large, the fluid pressure pushes the throttling orifice and the small opening end to expand, the flow area of the throttling orifice and the small opening end is increased adaptively, when the fluid flow at the upstream end is reduced, the calibers of the throttling orifice and the small opening end are retracted, the flow area is reduced, and the pressure fluctuation caused by the throttling effect is weakened through the expansion and contraction of the throttling and pressure controlling element 15, so that the fluid pressure after throttling is ensured to be stable.
FIG. 3 is a schematic structural diagram of a housing of the cone valve of the present invention, FIG. 4 is a schematic structural diagram of a valve core and a valve rod of the cone valve of the present invention, and FIG. 5 is a schematic structural diagram of an arc plate valve seat of the cone valve of the present invention; with reference to fig. 3-5, an arc plate valve seat 8 is further disposed inside the valve cavity of the housing 1, the arc plate valve seat 8 seals between the housing 1 and the conical valve core 3 in the valve cavity, specifically, limiting bosses 16 are formed on two sides inside the housing 1, the limiting bosses 16 divide the inner wall surface of the valve cavity of the housing 1 into two symmetrical part spaces, the arc plate valve seat 8 is divided into a left part and a right part, and the left part and the right part are respectively mounted in the two symmetrical part spaces, so that the arc plate valve seat 8 cannot rotate circumferentially after being mounted inside the housing 1, and through holes corresponding to the inlet passage and the outlet passage are formed in the arc plate valve seat 8 in a penetrating manner; the utility model discloses a conical valve element, including casing 1, directional pole 13, directional pole 14, bar groove 14 can strike off the impurity that gets into cylinder accommodation hole lateral wall and accomodate in bar groove 14 when directional pole 13 rotates in the cylinder accommodation hole, so that conical valve element 3's rotation is more the flow field, prevents that impurity from increasing rotation frictional force, and the conical valve element 3 installs into behind the casing 1, directional pole 13 is located in the cylinder accommodation hole, axial bar groove 14 has still been seted up on directional pole 13's the lateral wall.
Fig. 6 is a schematic structural diagram of a guide gland of the cone valve of the present invention, as shown in the figure, the main body of the guide gland 9 is a cylindrical structure, and is fixedly connected with the upper valve cover 6 through a flange, and a spiral groove 11 penetrating through the side wall of the guide gland 9 is formed on the side wall of the cylindrical structure; the valve rod 2 is provided with a through hole 12 which penetrates through the valve rod in the radial direction, a guide rod 10 is arranged in the through hole 12, two ends of the guide rod 10 are respectively located inside spiral grooves 11 on two sides of the guide gland 9, when the valve rod 2 rotates, the guide rod 10 is matched with the spiral grooves 11, so that the valve rod 2 is enabled to displace to a certain degree along the axial direction of the valve rod, the conical valve core 3 is driven to lift upwards in a micro-amplitude mode in the opening process, the conical valve core 3 is driven to descend in a micro-amplitude mode along with the rotation of the valve rod 2 in the closing process, the side wall of the conical valve core 3 is enabled to be in contact with the arc plate valve seat 8 more closely, and the sealing.
Fig. 7 is a schematic structural diagram of an oil seal ring of the cone valve, as shown in the figure, the oil seal ring 7 is a ring structure, a plurality of parallel grooves are circumferentially arranged on an inner wall surface of the oil seal ring, and the oil seal rings 7 are used in a stacked manner. The oil seal ring 7 can be made of rigid materials, and a labyrinth seal mode replaces a traditional packing type or rubber seal structure, so that frequent replacement of a seal part due to abrasion is not needed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it should be understood by those skilled in the art that various modifications and changes in equivalent structure or equivalent flow, or direct or indirect application to other related fields without creative efforts based on the technical solutions of the present invention may be made within the scope of the present invention.
Claims (7)
1. A pressure control type conical ball valve is characterized by comprising a shell, an upper valve cover, a guide gland, a conical valve element, a valve rod, a handle and a throttling pressure control element, wherein the conical valve element is positioned in a valve cavity in the shell, the upper valve cover seals the upper space of the valve cavity of the conical valve element, the upper end of the conical valve element is fixedly connected with the valve rod, the valve rod penetrates out of the upper valve cover upwards, an oil seal ring is sleeved on the valve rod and is positioned in an annular space between the valve rod and the upper valve cover to realize the relative sealing between the valve rod and the upper valve cover, the upper part of the upper valve cover is fixedly connected with the guide gland, the guide gland relatively fixes the oil seal ring to move along the axial direction of the valve rod, the guide gland is used for guiding the rotary motion of the valve rod, and the valve rod penetrates out of the upper end of the guide gland and is fixedly connected with the handle;
an inlet channel and an outlet channel which are communicated with the valve cavity are formed on two sides in the shell, a penetrating fluid channel is arranged on the cone valve core, the throttling pressure control element is fixedly arranged in the fluid channel of the cone valve core, the throttling pressure control element is provided with a large opening end positioned in the upstream direction and a small opening end positioned in the downstream direction, the main body of the throttling pressure control element is an elastic metal cone, a throttling opening with the inner diameter smaller than that of the small opening end is formed by spirally inwards shrinking at a position, close to the small opening end, between the large opening end and the small opening end, of the cone, the inner walls of the front side and the rear side of the throttling opening form folds with rotational flow guide, and the edge of the small opening end is evenly shrunk inwards to form a corrugated pipe type edge line.
2. The conical ball valve according to claim 1, further characterized in that an arc plate valve seat is further arranged inside the valve cavity of the housing, and the arc plate valve seat realizes sealing between the inner housing and the conical valve core of the valve cavity; limiting bosses are formed on two sides inside the shell, the limiting bosses divide the inner wall surface of the valve cavity of the shell into two symmetrical parts, the arc plate valve seat is divided into a left part and a right part which are respectively installed in the two symmetrical parts, so that the arc plate valve seat cannot rotate in the circumferential direction after being installed inside the shell, and through holes corresponding to the inlet channel and the outlet channel are formed in the arc plate valve seat in a penetrating mode.
3. The conical ball valve according to claim 1, wherein a cylindrical receiving hole is formed in the bottom of the housing, a directional rod is fixedly connected to the bottom of the conical valve core, the directional rod is located in the cylindrical receiving hole after the conical valve core is installed in the housing, and an axial strip-shaped groove is further formed in a side wall of the directional rod.
4. The conical ball valve according to any one of claims 1 to 3, further characterized in that the guide gland body is a cylindrical structure and is fixedly connected with the upper valve cover through a flange, and a spiral groove penetrating through the side wall of the guide gland is formed in the side wall of the cylindrical structure; the valve rod is provided with a through hole which penetrates in the radial direction, a guide rod is arranged in the through hole, and two ends of the guide rod are respectively positioned in the spiral grooves on two sides of the guide gland.
5. The conical ball valve according to claim 4, wherein the oil seal ring is of a ring structure, a plurality of parallel grooves are circumferentially arranged on the inner wall surface of the oil seal ring, the oil seal rings are stacked for use, and a labyrinth seal structure is formed between the oil seal ring and the valve rod through the grooves on the inner wall surface.
6. The conical ball valve according to claim 4 or 5, wherein the lower end of the valve stem is welded or integrally formed with the conical valve core.
7. The ball valve of claim 1, further characterized in that the section of the valve stem inside the upper valve cover and the guide gland is cylindrical, the uppermost end of the valve stem penetrating out of the guide gland is a square rod, the square rod is matched with a square hole of the handle, a screw is installed on the square rod in a threaded fit manner, and the handle is prevented from being separated from the square rod by the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011315998.6A CN112709835B (en) | 2020-11-22 | 2020-11-22 | Pressure-control type conical ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011315998.6A CN112709835B (en) | 2020-11-22 | 2020-11-22 | Pressure-control type conical ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112709835A true CN112709835A (en) | 2021-04-27 |
| CN112709835B CN112709835B (en) | 2022-06-21 |
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ID=75542539
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011315998.6A Active CN112709835B (en) | 2020-11-22 | 2020-11-22 | Pressure-control type conical ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112709835B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846221A (en) * | 1987-05-21 | 1989-07-11 | Kitz Corporation | Ball valve with built-in check valve |
| JPH0533874A (en) * | 1991-07-31 | 1993-02-09 | Sekisui Chem Co Ltd | Ball valve |
| US5690142A (en) * | 1996-07-30 | 1997-11-25 | The United States Of America As Represented By The Secretary Of The Navy | Variable orifice ball value |
| WO2000077429A1 (en) * | 1999-06-15 | 2000-12-21 | Ip.One Pty. Ltd. | A non-return valve |
| AU2004100420A4 (en) * | 1999-06-15 | 2004-07-22 | Global Valve Technology Pty Limited | A non-return valve |
| CA2658150A1 (en) * | 2008-12-31 | 2010-06-30 | Dresser, Inc. | Fluid control valve |
| WO2014066567A1 (en) * | 2012-10-26 | 2014-05-01 | Schlumberger Canada Limited | Coiled tubing pump down system |
-
2020
- 2020-11-22 CN CN202011315998.6A patent/CN112709835B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4846221A (en) * | 1987-05-21 | 1989-07-11 | Kitz Corporation | Ball valve with built-in check valve |
| JPH0533874A (en) * | 1991-07-31 | 1993-02-09 | Sekisui Chem Co Ltd | Ball valve |
| US5690142A (en) * | 1996-07-30 | 1997-11-25 | The United States Of America As Represented By The Secretary Of The Navy | Variable orifice ball value |
| WO2000077429A1 (en) * | 1999-06-15 | 2000-12-21 | Ip.One Pty. Ltd. | A non-return valve |
| AU2004100420A4 (en) * | 1999-06-15 | 2004-07-22 | Global Valve Technology Pty Limited | A non-return valve |
| CA2658150A1 (en) * | 2008-12-31 | 2010-06-30 | Dresser, Inc. | Fluid control valve |
| WO2014066567A1 (en) * | 2012-10-26 | 2014-05-01 | Schlumberger Canada Limited | Coiled tubing pump down system |
Non-Patent Citations (1)
| Title |
|---|
| 贺杰等: "锥形节流阀中背压对空化流场的影响", 《流体机械》 * |
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| Publication number | Publication date |
|---|---|
| CN112709835B (en) | 2022-06-21 |
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Address after: 325207 high tech Industrial Park, Nanbin street, Rui'an City, Wenzhou City, Zhejiang Province Patentee after: Kairuite Valve Group Co.,Ltd. Address before: 325207 high tech Industrial Park, Nanbin street, Rui'an City, Wenzhou City, Zhejiang Province Patentee before: KAIRUITE VALVE CO.,LTD. |
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